Home / 486,453.05-671,254.28-282,464.20

Finding the Fourth Proportional to 486,453.05, 671,254.28 and 282,464.20

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Solution

The fourth proportional to 486,453.05, 671,254.28 and 282,464.20 is: 389,771.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,453.05 : 671,254.28 = 282,464.20 : x
  2. Step 2: Convert to fraction form
    486,453.05/671,254.28 = 282,464.20/x
  3. Step 3: Cross multiply
    486,453.05x = 671,254.28 × 282,464.20
  4. Step 4: Simplify right side
    486,453.05x = 189,605,303,196.78
  5. Step 5: Solve for x
    x = 189,605,303,196.78/486,453.05
  6. Step 6: Final answer
    x = 389,771.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.